You have 43.4 g of O2 gas in a container with twice the volume as one with CO2 gas. The pressure and temperature of both containers are the same. Calculate the mass of carbon dioxide gas you have in the container.
0.678 g
2.71 g
29.8 g
59.7 g
none of these

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  1. An easy way to do this is this although there may be easier ways to do it.
    You want mols O2. 43.4/32 = about 1.4 but you probably need a better answer than this estimate.
    So PV = nRT and V for O2 = nRT/P but since R, T and P are constant, we can write V for O2 = nk and solve for k = VO2/n. Assume a value of 2 for VO2(any number will do) which makes k = 2/1.4 = about 1.4.
    Then V for CO2 will be 1 (1/2 of whatever number you chose for V of O2).
    nCO2 = VCO2/k = 1/1.4 = about 0.7 and convert to grams.
    g CO2 = about 0.7 x 44 = about 31. If you will clean up the estimates I've made, I expect 29.8 will be the answer.

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  2. 1st: (43.4/31.9988= 1.356
    2nd: 133500861/2=.678
    3: 44.0098*.678=29.84526482g
    your answer is 29.8g

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